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Effects of Power Ultrasound on Precipitation Process of Sodium Silicate Solutions

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EPD Congress 2015

Abstract

Sodium silicate solutions for producing silica have been ultrasound treated to enhance the precipitation process in laboratory scale. Higher precipitation rate was found with ultrasound treated solutions than those without ultrasound. The obtained SiO2 powder products were characterized using XRD, SEM, BET and laser particle size analyzer. The particle size distribution and the specific surface area of the powder products varied with the power input level and the processing time of the ultrasonic treatment. The results indicate that the efficiency of the precipitation process can be improved optimally when the ultrasound is conducted into the solutions before the nucleation stage.

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Correspondence to Jun Zhu .

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© 2015 TMS (The Minerals, Metals & Materials Society)

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Li, T., Xue, J., Luo, W., Zhu, J. (2015). Effects of Power Ultrasound on Precipitation Process of Sodium Silicate Solutions. In: Yurko, J.A., et al. EPD Congress 2015. Springer, Cham. https://doi.org/10.1007/978-3-319-48214-9_13

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